Okada, Hakuyu; Thierstein, Hans R (1979): Calcareous nannoplankton Leg 43 Deep Sea Drilling Project. In: Tucholke, BE; Vogt, PR; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Government Print Office), 43, 507-543, doi:10.2973/dsdp.proc.43.117.1979